APIcast does not send chunked requests when client request header includes "Transfer-Encoding: chunked"

Issue

• If a request sets the HTTP header "Transfer-Encoding: chunked" then the body will be sent as chunks and the upstream will expect this as such but instead receives the entire request not chunked and without a "Content-Length" header either.
• This only happens when APIcast is integrated with an HTTP Proxy or a Camel Proxy service and the traffic is sent over HTTPS.